Organic fertilizer （base fertilizer） plus chemical fertilizer is widely used in South China. Two fertilizer ways were design in Guangzhou Region, which were pig-dung plus chemical fertilizer and mushroom fertilizer plus chemical fertilizer. On the same fertilizing effects and irrigation condition, the CH4
emission flux from paddy fieldswas monitored. The experiments show that, on the same rice production condition, CH4
Emission could be reduced by using mushroom base fertilizer instead of pig-dung base fertilizer in paddy fields in Guangzhou Region.